Because in these cases a concept seems necessary for an act of judgment, it is said that judgment is a more advanced form of thinking than conception. On the other hand, however, judgment is implied in the formation of a concept. When the child apprehends the dog as a four-footed object, his mind has grasped four-footedness as a quality pertaining to the strange object, and has, in a sense, brought the two ideas into relation. But while judgment is implied in the formation of the concept, the concept does not bring explicitly to the mind the judgments it implies. The concept snow, for instance, implies the property of whiteness, but whiteness must be apprehended as a distinct idea and related mentally with the idea snow before we can be said to have formed, or thought, the judgment, "Snow is white." Judgment is a form of thinking separate from conception, therefore, because it does thus bring into definite relief relations only implied in our general notions, or concepts. One value of judgment is, in fact, that it enables us to analyse our concepts, and thus note more explicitly the relations included in them. =Universal and Particular Judgments.=--Judgments are found to differ also as to the universality of their affirmation. In such a judgment as "Man is mortal," since mortality is viewed as a quality always joined to manhood, the affirmation is accepted as a universal judgment. In such a judgment as "Men strive to subdue the air," the two objects of thought are not considered as always and necessarily joined together. The judgment is therefore particular in character. All of our laws of nature, as "Air has weight," "Pressure on liquids is transmitted in every direction," or "Heat is conducted by metals," are accepted as universal judgments.